|
Concentrations (Details) (Sales revenue [Member])
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
|
United States [Member]
|
|||
| Concentration Risk [Line Items] | |||
| Percentage of sales | 90.00% | 90.00% | 87.00% |
|
Europe [Member]
|
|||
| Concentration Risk [Line Items] | |||
| Percentage of sales | 7.00% | 5.00% | 6.00% |
|
Other [Member]
|
|||
| Concentration Risk [Line Items] | |||
| Percentage of sales | 3.00% | 5.00% | 7.00% |